Linux system, supporting WebUI web page settings; Built in eSIM, network mode operation can be implemented without the need for card insertion; 1408 channel, supporting 7-star 31 frequency, and supporting Beidou-3; Lightweight and miniaturized, all magnesium alloy body design; Integrating GNSS, Bluetooth, WIFI, and 4G antennas; Built in receiver, omnidirectional, broadband, multi protocol compatible with mainstream RTK products in the market; IMU inertial navigation module, 6-axis 400Hz dynamic output, tilt measurement technology without calibration; 7.2V 6900mAH large capacity lithium battery, supporting USB PD fast charging and power bank